of new haven



gettati i 5mm mwaggwamw W. A. IVE S, OE NEWv HAVEN, CONNECTICUT.

Letters Patent No. 82,957, dated October 13, 1868. v-

The Schedule referred to in these Letters Patent and making part of the same.

Be it known that I, W. A. IvEs, of New Haven, and State of Connecticut, have invented anew and irnproved Inode of constructing the Tenoning-Machine or Hollow Auger; and the following is a full description thereof, reference being had to the accompanying drawing.

I take the ordinary casting, or circular stock A, of suitable size for al/ auger. -Across the head I cut a slot, B, about a half inch deep, Aand of suitable width for cutting the largest-size tenon. Into this slot I i'lt two movable dies or kniie-holders C C, with grooves in their sides. Into one side of the slot I insert a right and left hand-screw E. About half its diameter is let into the edge ofthe slot, and the other half works into a corresponding thread in the groove of, the holder. This screw is held stationaly by a collar in and near the centre of the slot.

The cutters are set angular or laid horizontally, as desired.

'lo keepthe dies in place, and hold them iirmly when the machine is in use, I insert in the opposite side of the casting two screws g g, the points reacl ing through and iitting into the grooves, one sere against each die.

' The size of the tcnon to be cutis regulated b simpl)r turning the screw E, by which' the knives a1 both moved at the saine time and in opposite dire tions, and -will out from three-eighths of an inch to o1 inch and a half; and as the cutters move directly 'o ward and backward, the auglegis always the saine.

I do not claim the screw E nor the movable knitl holders, as such; but

What I do claim, and wish to secure by Lettei Patent, is 1 The combination of the circular stock A, slot B, an screw E, and two movable jaws or knife-holders C constructed and operated substantially for the pu poses and in the manuel' as above speciiicd.

W. A. IVES. Witnesses:

H. O.'WARREN, GEORGE R. No'r'r. 

